Stored Cross-Site Scripting in WP YouTube Lyte Plugin for WordPress
CVE-2026-3299

6.4MEDIUM

Key Information:

Vendor

WordPress
Status
WP Youtube Lyte
Vendor
CVE Published:
16 April 2026

What is CVE-2026-3299?

The WP YouTube Lyte plugin for WordPress contains a vulnerability that allows authenticated attackers with contributor-level access or higher to exploit the 'lyte' shortcode. This is due to insufficient input sanitization and output escaping on user-supplied attributes. Attackers can inject malicious web scripts into pages, resulting in these scripts being executed whenever a user accesses the affected page, potentially compromising user data and site integrity.

Affected Version(s)

WP YouTube Lyte 0 <= 1.7.29

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/changeset/3482595/wp-y...

CVSS V3.1

Score:
6.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Muhammad Yudha - DJ
.